<template>
  <a-layout>
    <a-layout-content
        :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
    >
      <p>
        <a-form layout="inline" :model="param">
          <a-form-item>
            <a-input v-model:value="param.name" placeholder="名称">
            </a-input>
          </a-form-item>
          <a-form-item>
            <a-button type="primary" @click="handleQuery({page:1,size:pagination.pageSize})">
              查询
            </a-button>
          </a-form-item>
          <a-form-item>
            <a-button type="primary" @click="add()">
              新增
            </a-button>
          </a-form-item>
        </a-form>
      </p>
      <a-table
          :columns="columns"
          :row-key="record => record.id"
          :data-source="ebooks"
          :pagination="pagination"
          :loading="loading"
          @change="handleTableChange"
      >
        <template #cover="{ text: cover }">
          <img v-if="cover" :src="cover" alt="avatar" />
        </template>
        <template v-slot:category="{ text, record }">
          <span>{{getCategoryName(record.category1Id)}} / {{getCategoryName(record.category2Id)}}</span>
        </template>
        <template v-slot:action="{ text, record }">
          <a-space size="small">
            <a-button type="primary" @click="showModal(record)">
              编辑
            </a-button>
            <a-popconfirm
                title="删除后不可恢复，确认删除？"
                ok-text="是"
                cancel-text="否"
                @confirm="handleDelete(record.id)"
                @cancel="cancel"
            >
              <a-button type="danger" >
                删除
              </a-button>
            </a-popconfirm>
          </a-space>
        </template>
      </a-table>
    </a-layout-content>
  </a-layout>
  <div>
    <a-modal v-model:open="open" title="Title" :confirm-loading="confirmLoading" @ok="handleOk">
      <a-form :model="ebooks" :label-col="{span:6}" :wrapper-col="{span:18}">
        <a-form-item label="封面">
          <a-input v-model:value="ebooks.cover" />
        </a-form-item>
        <a-form-item label="名称">
          <a-input v-model:value="ebooks.name" />
        </a-form-item>
        <a-form-item label="分类">
          <a-cascader
              v-model:value="categoryIds"
              :field-names="{ label: 'name', value: 'id', children: 'children' }"
              :options="level1"
          />
        </a-form-item>
        <a-form-item label="描述">
          <a-input v-model:value="ebooks.desciption" type="textarea" />
        </a-form-item>
      </a-form>
    </a-modal>
  </div>
</template>

<script lang="ts">
import { defineComponent, onMounted, ref } from 'vue';
import axios from 'axios';
import {message} from "ant-design-vue";
import {Tool} from "@/until/tool";

export default defineComponent({
  name: 'AdminEbook',
  setup() {
    const ebooks = ref();
    const pagination = ref({
      current: 1,
      pageSize: 4,
      total: 0
    });
    const loading = ref(false);
    const columns = [
      {
        title: '封面',
        dataIndex: 'cover',
        slots: { customRender: 'cover' }
      },
      {
        title: '名称',
        dataIndex: 'name'
      },
      {
        title: '分类',
        slots: { customRender: 'category' }
      },
      {
        title: '文档数',
        dataIndex: 'docCount'
      },
      {
        title: '阅读数',
        dataIndex: 'viewCount'
      },
      {
        title: '点赞数',
        dataIndex: 'voteCount'
      },
      {
        title: 'Action',
        key: 'action',
        slots: { customRender: 'action' }
      }
    ];
    /**
     * 数据查询
     **/
    const handleQuery = (params: any) => {
      loading.value = true;
      axios.get("/ebook/list",{
        params:{
          page: params.page,
          size: params.size,
          name: param.value.name
        }
      }).then((response) => {

        loading.value = false;
        const data = response.data;
        if (data.success) {
          ebooks.value = data.content.list;
          // 重置分页按钮
          pagination.value.current = params.page;
          pagination.value.total = data.content.total;
        } else {
          message.error(data.message);
        }

      });
    };

    /**
     * 表格点击页码时触发
     */
    const handleTableChange = (pagination: any) => {
      console.log("看看自带的分页参数都有啥：" + pagination);
      handleQuery({
        page: pagination.current,
        size: pagination.pageSize
      });
    };
    onMounted(() => {
      handleQueryCategory();
      handleQuery({
        page:1,
        size:pagination.value.pageSize
      });
    });
    const categoryIds = ref();
    const level1 =  ref();
    let categorys:any;
    /**
     * 查询所有分类
     **/
    const handleQueryCategory = () => {
      loading.value = true;
      axios.get("/category/all").then((response) => {
        loading.value = false;
        const data = response.data;
        if (data.success) {
          categorys = data.content;
          console.log("原始数组：", categorys);

          level1.value = [];
          level1.value = Tool.array2Tree(categorys, 0);
          console.log("树形结构：", level1.value);
        } else {
          message.error(data.message);
        }
      });
    };

    const handleDelete = (id: number) => {
      axios.delete("/ebook/delete/"+id).then((response) => {
        const data = response.data;
        if(data.success){
          //重新加载列表
          handleQuery({
            page:pagination.value.current,
            size:pagination.value.pageSize,
          });
        }
      });
    };


    const open = ref<boolean>(false);
    const confirmLoading = ref<boolean>(false);

    const confirm = (e:MouseEvent) => {
      console.log(e);
      message.success('Click on Yes');
    };

    const cancel = (e:MouseEvent) => {
      console.log(e);
      message.error('您取消了删除操作');
    };

    const param = ref();
    param.value = {};

    const showModal = (record:any) => {
      open.value = true;
      ebooks.value = Tool.copy(record);
      categoryIds.value = [ebooks.value.category1Id, ebooks.value.category2Id]
    };
    const add = () => {
      open.value = true;
      ebooks.value = {};
    }

    const handleOk = () => {
      confirmLoading.value = true;
      ebooks.value.category1Id = categoryIds.value[0];
      ebooks.value.category2Id = categoryIds.value[1];
      axios.post("/ebook/save", ebooks.value).then((response) => {
        confirmLoading.value = false;
        const  data = response.data;
        if(data.success){
          open.value = false;

          handleQuery({
            page: pagination.value.current,
            size: pagination.value.pageSize,
          });
        }else {
          message.error(data.message);
        }
      });
    };

    const getCategoryName = (cid: number) => {
      //console.log(cid)
      let result = "";
      categorys.forEach((item:any) =>{
        if (item.id === cid){
          // return item.name; // 注意直接return不起作用
          result = item.name;
        }
      });
      return result;
    };

    return {
      ebooks,
      pagination,
      columns,
      loading,
      handleTableChange,
      showModal,
      handleOk,
      confirmLoading,
      open,
      add,
      handleDelete,
      confirm,
      cancel,
      handleQuery,
      param,
      categoryIds,
      level1,
      getCategoryName
    }
  }
});
</script>
<style scoped>
img {
  width: 50px;
  height: 50px;
}
</style>